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What's Going Around Wind Turbines: Turbulent Vortices

A wind turbine.

I am researching how wind flows behind wind turbines by analyzing experimental and numerical data. The experimental data has been collected around the turbine that is pictured at right, and the numerical model is based on this turbine.

I’m specifically analyzing the structure and evolution of the vortices that are created at the blade tips. The vortices are caused by areas of low pressure around the turbine. Turbines’ blades rotate because the aerodynamic shape of the blades guides incoming wind into creating a pressure difference that, in turn, drives the blades. Another difference in pressure is due to the fact that the blades block wind, so behind the blade there are fewer air molecules and thus, there is a lower pressure. Objects feel forced to move to lower pressures. Both the blades and the wind are forced into the lower pressure. Some wind wraps around the blades in order to get to the low pressure area.

A vortex forms where the wind curls because the low pressure applies a centripetal force — like how a hurricane is a vortex where wind wraps around the hurricane’s low-pressure eye. Vorticity quantifies how much the fluid rotates around a region. In math terms, the vorticity is the curl of the wind velocity. Strong vortices are created at the blade tips because here the wind can radially bypass the blade, which provides the path of least resistance in the pursuit of lower pressure. This vortex is then pushed downstream by the wind, away from the blades’ low pressure region; the wind continues to curl due to a law of angular momentum conservation. The tip vortices are major sources of turbulence that damage downstream turbines. Consequentially, tip vortex research can lead to improvements in the longevity of turbines in wind farms.

Green Molecules and Green Chemistry Labs, Part II

Summer snuck up behind me. Before I knew it, high school graduation was here, school was out, and with it, most of the students and teachers who normally populate the Bard Queens hallways I’ve roamed and reacquainted myself with.

One of the first things I was told to expect about the PSF project was to be ready for surprises, and to be ready to take things in stride. Even so, when the end of June approached, I panicked. I knew I couldn’t work in the lab without a supervisor, and knew that Julia would be leaving for China come the last week of school. I hadn’t begun working in the lab until the start of June, since working here required permission from the NYC DOE (bureaucracy has a funny way of stifling creativity). School duties (proctoring, chaperoning, etc.) kept Julia and Cindy busy for a few days, and migraine attacks kept me from the lab once they were back and ready to go. After working in the lab for two weeks, and a cumulative one-week absence, I found myself with a notebook full of ideas but no time left to act them out. I performed what I could and got ready to say goodbye, disappointed that June had come and gone with the wind.

Right before she left, Julia mentioned that Cindy, the lab teaching assistant, was willing to work with me over the summer. Still, she admitted that this rested on its acceptance by the powers that be. I gave her a gift, hugged her, said goodbye, and thanked her for all she had done for me. I waited. Then, ecstasy! Cindy said she would be in the lab, and that I was welcome to pass by anytime.

Phase 1

Robert Swinhoe

John Young '15, environmental sciences/history, was awarded a President's Summer Fellowship to "travel to and collect consular records from the British National Archives, the Royal Geographical Society, and the Natural History Museum in London, and then return to Reed in order to analyze and further chart the collecting habits and practice of natural history of the ornithologist Robert Swinhoe (1836-1877)."

Professor Douglas Fix tells me that one should have an excellent idea of what collections an archive holds long before one arrives at the archive’s reading room. A visit to collect documents, a perhaps seemingly pedestrian task, requires a large measure of pre-visit prep work. 

More than I anticipated. 

PSF project with Campus Within Walls

I glance at myself in the mirror, and anxiously scrutinize my outfit. Long khaki pants and a plain, loose-fitting black shirt. It’s my first day of school, and the dress code is quite strict. No jeans. Nothing too revealing, nothing too form-fitting. No dresses, no skirts. Long pants. Sleeved shirts. No blue tops. The possible ways I could violate the code seem endless.

I glance down. My shoes may be a problem. Only closed toed shoes are allowed, and all I brought with me are sandals and running shoes. I wear the running shoes as they are the pair with the only chance of passing inspection, but they may prove to be too informal.

I grab my bag. It contains my wallet and cell phone, though I know already these items will be staying in the car. I will bring only my photo ID into the school building.

White Net Under a Red Flag: A First Look at one of China's Most Popular Sports

If you have been watching the World Cup, or keep tabs on any other sport, it should come as no surprise that sports play a very meaningful roles in our lives in the 21st century. Here is a PSF project about a sport you may have never thought seriously about, but which is ubiquitous across Asia and especially in China.

"Everybody is crazy about badminton here," my new friend says as we sit along side East China Normal University's badminton courts. His name is Varun and he is an Indian graduate student who started playing badminton when he matriculated to ECNU two years ago. Varun plays with the Chinese regulars at the gym almost every day, and knows most everyone here. "I never played in India, although it's quite popular there," he tells me. "But now," he says with a smile on his face, "I'm addicted."

What Varun said about ECNU's badminton craze is not hard to see when we look out in front of us. It is Wednesday late afternoon and most of the gym's eight courts are full. And this isn't counting the five courts in the adjacent gym, or the school’s small indoor stadium, which features eight courts. The stadium isn't always open, and the gym isn’t always as full as it is now, but I can put it this way: I have never come here and not seen at least a handful of people playing. At peak times it can be hard to find an open court at all—players need to pay for their court time and join a queue.

Old Thimi, Nepal, Potters of the Prajapati Community

  The streets of Old Thimi hum with the sounds of spinning wheels and the shuffling of terracotta, and there is a distinct scent of ash and mud. The just-thrown planter pots, whose silver bodies mingle with sleeping dogs in the sun, dry in alleys seemingly indifferent to the motorcyclists who carefully dodge by. There is always a bustle of activity in these streets and courtyards, and more often than not it surrounds some process related to pottery. Stacks of pots, dry, wet, or fired, line the streets. Piles of hay and ash wait in courtyards to be sacrificed for the transformation of wet clay into terracotta. Massive chipped water jars sit in dusty corners, bearing witness to their own extinction. In the past 50 years the ceramics industry in Kathmandu Valley has undergone significant change. What was once a booming market demanding a diversity of clay products has since significantly dwindled. Today, one finds few potters making anything besides planter pots, rice beer distillers, and popcorn bowls, which betray Thimi’s reputation as home to the craftsmen who throw the largest pots in all of Nepal.

Successful "Sophomore Stretch" prepares students to make the most of opportunities at Reed

What. A. Summer.

I’ve been struggling to find the appropriate words to express just how profound my experience as a President’s Summer Fellow has been. After falling into a deep rut following a series of negative experiences working as a professional ballet dancer, I desperately wanted to rewire my relationship to my body, my technique, and the concert dance world in general. This was a big request for a ten week project, but I am incredibly happy with the results. Through innumerable bruises, doubts, and tears, I have come out of this adventure a very different dancer then when I began. Spending six weeks training and exploring at the San Francisco Conservatory of Dance has given me new confidence, a new sense of wonder, and new joy in all things dance and movement related.

leg

Final notes from a Paris biology lab

My practicum in the philosophic aspects of scientific research is technically over today. My internship at LBPA (Laboratoire de biologie et de pharmacologie applliquée) at ENS-Cachan was an amazing experience. I want to thank Bianca Sclavi and the teams at ENS-Cachan for being so kind and flexible to my non-scientific presence in their laboratories. I hope that I opened a few minds to the idea of the benefits of integrating the humanities with the physical sciences. I also want to thank Reed College for all of the support and aid that has made my summer such a grand success.

During my time as an embedded philosopher I have tried to ask questions that people somehow ignore in the lab. These questions attempt to expose the epistemic values that are hidden within the scientific method, and show how the physical sciences represent reality just as well as other disciplines. Due to the values embedded within research projects the physical sciences do not actually uncover "truths" of reality, but in fact the knowledge produced from a lab is similar to a fictional narrative. From deciding which graphs to choose for a report, which instruments to trust, or even the simple act of pipetting, there are always values that frame the scientific research. However, before I finish my summer project I would like to reintegrate the three themes of my practicum. One of my focuses was to look at the epistemological aspects of the scientific process.

I began by looking into how the research at LBPA is funded. It became clear that the process of applying for funding is completely flawed and it is now becoming more and more of a game of luck. The number of applicants grows every year, as does the need for labs to consider what they bring to society. This brought me to the second focus of my internship: broader impacts.

It is becoming necessary for research teams to consider the impacts of their research, and it is also becoming increasingly clear that the best way to accomplish this is through interdisciplinary (ID) and transdisciplinary (TD) research. Research teams who claim that their projects are only for the sake of science are losing funding. Researchers need to learn how to engage with other academics from different disciplines and with the citizens of their society in order to be competitive for grant money. My research on broader impacts led me to the third focus to my internship. Due to the importance of ID/TD I decided to investigate the state of ID/TD education and research in Paris.

It turns out that I’ve launched myself on a set of new adventures. I visited the Centre de Researche Interdisciplinaire (CRI) in Pairs, and learned a lot about their programs for ID/TD research and education. I met with their curriculum designer to find ways that I can become involved with their courses on the philosophy of science this fall. This might be in the form of a presentation describing my practicum, or I might lead a discussion group every week on science and society studies and the philosophical questions intrinsic to scientific research. This is all still in the planning stages, but I am looking forward to working with CRI this fall.

Maya at Work

So, all in all I would have to say this summer has been a success. My final report on my experiments at LBPA contests the current understanding of the structure of a cell, and hopefully further research on this area will lead to breakthroughs on how the inner structure of the cell effects DNA replication. To learn more, visit the link below to my final report. Also, one of my hopes for this internship was to establish relationships that could potentially being me back to Paris in the future, and I believe that there is a strong possibility of that happening.

I hope you all have a wonderful month of August! I will be off reading Adieux by De Beauvior on a beach in Greece. I am looking forward to a break from reading science and STS articles….

-Maya Frodeman, Reed College ‘15

P.S. If you want to hear more about my summer internship I have an extended blog at: http://cascsid.cas.unt.edu/?author=20 I am writing under the name of Axiothea.…

P.P.S Here is a copy of my official lab report on the activity of the phage P5 promoter in E.Coli: FINAL DRAFT--Report on the activity of the P5 promoter

Locating the Past, Chapter Two Language and Culture in BNF Manuscript 375

Young man

Lukas

As with my first blog post, I will first summarize my research at the national library, then say a few words about my home and social lives in Paris.

My research has progressed well since the last round of blog posts.  Readers may recall that my preliminary goal as a President’s Summer Fellow was to idenfity the geographic origins of the second text in Ms. BNF 375, a medieval French version of the Apocalypse.  I spent my first month in Paris doing just that.  I first performed a dialectal analysis to determine the provenance of 375’s copy of Explication.  In brief, the copyist wrote in picard, a Northern scripta, or written dialect.  However, I also noticed that the text opens with a prologue, and that this prologue exhibits a number of linguistic traits inconsistent with Picard writing.  Working under the assumption that the language of the prologue is also that of the original text, I was able to link Explication to a prominent 12th-century coypist, Gilbert de la Porrée, bishop of Poitiers from 1142-1154.  In the end, then, I can make a pretty tenable connection between 375’s Apocalypse and the city of Poitiers.

Notes from a Paris Biology Lab, Ch 2

open notebook with laboratory notes

Lab notes

Hello! I am starting the beginning of my fourth week of my internship here in Paris! Wow, time goes by very quickly.

Today I read a great article called Disciplinarity: An Introduction by David R. Shumway and Ellen Messer-Davidow. It had a sweeping overview of the history of disciplinary education, and cited many of the current scholars of the transdisciplinary revolution that is catching on in academia. It was fascinating, and I hope to re-read it later tonight. I also did some research on William Whewell, a 19th c. polymath. He wrote on so many subjects that it is hard to get an idea of his character, but it is clear that he was an influential thinker in Britain. He is most well-known for his philosophy of science, history of science and moral philosophy (SEP). Some neat facts about him are that he coined the term "scientist," and that before him scientists were "called natural philosophers." Ha! The irony! I wonder how many scientists are aware of the philosophic implications behind their title…. Whewell was also very close to the influential scientists of his time. Darwin, Faraday and others would come to him to invent terms such as “anode,” “cathode,” and “ion” (those were invented for Faraday). Anyways, Whewell is someone who I hope to do more reading on. He seems like a great mind and his work is very pertinent to my studies.

Japanese Woodblock Printing, Second Chapter

Work in the studio is well under way with my instructor Richard Steiner, who has been teaching Moku Hanga, or Japanese woodblock printmaking, for over twenty years and is an established artist in Kyoto. His studio is near downtown Kyoto and makes use of every square inch of it’s modest size.  Steiner has dreams of moving his studio to an abandoned temple in the countryside of Japan, but for now we work in the little house, where everything--brushes, rulers, paints, scissors, rulers, papers--has its right place. Usually there are only one or two students in the studio at a time, so the room never gets too crowded.

Traditional moku hanga separated the designing, the carving, and the printing of artworks into three distinct roles to be performed by the artist, the carver, and the printer. In Steiner’s studio, we still maintain this separation, but the artist performs all three jobs. Many traditional moku-hanga instructors begin by teaching students as a master would an apprentice: by asking students first to adhere to the instructor’s style. Richard Steiner, however, while following the traditional method of moku-hanga printing, encourages students to explore their own ideas when designing prints. What results is a collections of whimsical and creative works made by Steiner and past students which fill every spare spot of wall in the studio.

The photographs below show me working on my third print, and my first with color. The paints used are simple water colors, mixed with a starch paste.

Humanitarian Design 2: Empowering Portland Through Community Oriented Architecture

At some point during the past few weeks, all three tracks of my summer project picked up simultaneously, and my days have been a whirlwind ever since. As I write this post, I can however reflect upon one aspect of my summer project that recently wrapped up.

Today, I attended the last meeting of my five-week architecture course at PSU. A very basic introduction, the course touched upon a variety of subjects that shape architectural theory and practice. Lectures, videos, and discussions covered topics ranging from the roles of fashion, technology, and consumerism in building design, to deeper questions regarding how design generates and communicates meaning. The course—though not the technical education I had hoped for—presented an intriguing and occasionally disheartening window into the challenging, complex, and struggling field that is contemporary architecture.

To say that my professor is disillusioned with current architectural practice would be an understatement. Because my professor believes that architecture has lost sight of its fundamental values, he challenged my classmates and I to practice deliberate and ethical architecture. In light of everything, good and bad, that I learned about architecture, my desire to pursue a career in the field remains intact. Now, I feel better equipped to attempt a postgraduate degree, and no matter where I end up, to make sure that I keep the fundamentals of architecture close at hand.

Reconstructive Improv 2

Woman dancing

It’s hard to believe that nearly three weeks have passed since I wrote my last blog post for Works and Days. Here in San Francisco, time has been flying by, and the workshop I’ve been participating in at the SF Conservatory of Dance is almost over. When I last wrote, I was nearing the end of the first half of the program, and had been busily taking classes in a variety of different contemporary dance idioms. In the second half of the workshop, the focus has narrowed and my classmates and I have been immersed in the improvisational and choreographic techniques of choreographer William Forsythe. While we haven’t been working with Forsythe directly, our exploration has been guided by a trusted representative of the choreographer (and a brilliant artist in his own right), Alessio Silvestrin. Having studied Forsythe and his choreography extensively for my final paper in Professor Hannah Kosstrin’s Dance 201 class, I had some idea of what to expect going into this part of the workshop, but it has still been incredibly challenging.

The Reed College Peer-Reviewed Journal

The context for my President's Summer Fellowship engages three distinct elements, which combined, will serve to inform the final goal, the production of a new, peer-reviewed journal that will engage the diverse voices of Reed’s students, faculty, and staff, spanning all departments. The elements include: To work as an intern at one of the seven internships at both literary magazines and publishing houses to which I have applied, in order to acquire the necessary skills to develop the foundation for a journal of this nature and to become well versed in the responsibilities of managing a publication. Secondly, I will conduct research at various colleges like Sarah Lawrence and Goucher College, who are already producing similar successful publications, and lastly, I will return to propose and implement my work here at Reed.

Japanese Woodblock Printing: Cultural Connections and Dialogues through Art

Growing up, Japan was always a large presence in my life. My mother made sure that I spoke Japanese fluently, and filled our household with the food, music, and traditions of her world. She also enrolled me in a Japanese school system in Eugene, Oregon, where I was able to continue learning about Japan outside my home. The result was a life suspended between the country of my heritage thousands of miles across the Pacific, and the American culture surrounding me. I am in Japan to learn the craft of traditional woodblock printing, an art that holds a vital place in Japan’s history, and has fascinated and influenced me for several years. Richard Steiner, an artist who resides in Kyoto and has taught for more than thirty years has agreed to teach me a seven week course on the art form. While in Kyoto I will also educate myself by fully engaging in the Japanese community to grasp what it means to be a part of the culture in a way I haven’t previously been able. I want to share and help pass on this rich traditional craft and opportunity for creativity. To do so, I will create an introductory art course on woodblock printing and offer the class in Portland where students will create their own Japanese prints and learn about the history of the art form.   

Telling the Cuban Story: Interviewing the Last Generation of Cuba as We Know It

For my President's Summer Fellowship, it is my dream to collect the stories of the Cuban people before the huge political changes soon to occur in Cuba actually take place, including the oncoming takeover of a new president in five years, and the consequent ending of the famous 60 year Castro dictatorship. Soon the political climate will undergo enormous changes, taking old Cuba with it; and the generation that lived through the Cuban revolution will be gone, taking their stories with them. This is a critical time in Cuban history.

The goal of my project is to document as many stories as possible from the dying generation in Cuba that lived through the Cuban revolution in the 1950s; and as many Cuban perspectives of present conditions as I can.

Humanitarian Design: Empowering Portland through Community-Oriented Architecture

Halfway through my freshman year at Reed, I decided, after much deliberation, to major in studio art. My initial reluctance stemmed from a fear of the impractical and individualistic nature of an arts-oriented career, which I believed would limit my ability to make a tangible difference in the lives of others. That is, until the moment I seriously reconsidered my lifelong interest in architecture. Suddenly, years spent meticulously constructing houses in The Sims and wandering unknown neighborhoods ogling Craftsman bungalows became the solution to my dilemma. I realized that, as an architect, I can utilize my artistic skill and appreciation of the built environment to effect meaningful change in the world. Post-Reed, I plan to complete a masters program in architecture and embark upon a career in humanitarian design. For the moment, I am trying to gain the experience and knowledge necessary to facilitate my vision.

Reconstructive Improvisation

Through my President's Summer Fellowship, Reconstructive Improvisation, I intend to transform my relationship with dance through participation in the San Francisco Conservatory of Dance’s (SFCD) 2013 Summer Workshop. This workshop explores the work of choreographer William Forsythe, a preeminent contemporary choreographer who has radically re-configured classical ballet.

I think it’s safe to say that this project is turning out to be one of the most challenging things I’ve ever done. Going from nine hours of studying a day to nine hours of dancing has been a pretty drastic shift. My whole body aches, and when I get home at night my brain is a slushy mess of musings on energetic pathways, bodily syntax, and corporeal architecture. I’m currently about halfway through my project, and have been in San Francisco studying at the SF Conservatory of Dance for several weeks. Along with my 26 compatriots I spend from 8:30 AM to 6:00 PM Monday through Friday and 9:30 AM to 4:00 PM on Saturdays in the studio.

Locating the Past: Language and Culture in BNF Manuscript 375

For my President's Summer Fellowship Award, I undertook to pinpoint the geographical origins of a medieval French manuscript and to thereby develop a novel philological method of inquiry that could hold great promise for medievalism, art history, and for my development as an individual and a scholar.

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