Turbulence

Computational Fluid Dynamics Computational fluid dynamics (CFD) is the simulation of fluids in engineering systems using modeling such as mathematical physical problem formulation and numerical methods like discretization methods, solver, numerical parameters and grid generation. Computational fluid dynamics is based on the concept of Reynolds averaging of the unsteady Navier-Stokes equation commonly known as (RANS) which are considered by Leishman to be the most adaptable method for analyzing nonlinear viscous flows providing that a suitable turbulence model is employed. In VAWT, this nonlinearity is enhanced by the presence of the dynamic stall phenomenon due to the rapid change in the angle of attack of the blades during turbine…

Fluid dynamics and Bernoulli's equation Moving fluids Fluid dynamics is the study of how fluids behave when they're in motion. This can get very complicated, so we'll focus on one simple case, but we should briefly mention the different categories of fluid flow. Fluids can flow steadily, or be turbulent. In steady flow, the fluid passing a given point maintains a steady velocity. For turbulent flow, the speed and or the direction of the flow varies. In steady flow, the motion can be represented…

Once implementation begins, we must not forgo the revisiting of the plan, and allow for real dialogue to take place within the leadership of the group. This way, we can assure that the stakeholders remain interested and informed. When the leadership team presents the initiative, we will strive to encourage others to improve their capacity for change. In other words, although it will seem difficult at first, we should study and critique our school culture so we can pinpoint where exactly we are…

Teacher’s Turbulence In the American education system, there were formerly many drop-outs. However, recently those numbers have become drastically lower. The reason is not because more students are doing well, but because teachers can no longer allow students to fail for the sake of their career and the government. Moreover, because of the no child left behind grant and other reforms, any person who has “disabilities” or has claimed any number of “disabilities” can retake classes as needed until…

are revealed and explain how large groups of people transmit and respond to messages. Because these truths are essential to communication, she attempts to understand them by studying specific variables of individuals through empirical observation. For example, she conducted a study that researched boundary turbulence in relationships. Her first research question asks about the prevalence of certain emotions during occurrences of boundary turbulence. This motivates her first hypothesis that…

We can recognize, then, that both Heifetz and Gross understand turbulence—or disequilibrium—as a necessary tool for leaders to use in transforming their organization. Yet, Heifetz warns leaders to be cautious when dealing with disequilibrium because they can “risk job, reputation, and perhaps life” (p. 236). In respect to school leaders who desire equity, the loss of life may be extreme; however, the loss of their job or damage to their reputation may be a reality “because they come to represent…

One would not expect a dance to disturb and challenge normative views when watching live or on the screen. The dance, Turbulence by Kenneth Hennessey, challenges those views with simple acts. The choreographer, Kenneth Hennessey, challenges these views by including the audience into the dance. Normally, a dance would not include the dance, but this dance includes the audience’s full attention throughout the entirety of the performance. Then the choreographer introduces the form of nakedness to…

"Turbulence is a life force. Let 's love turbulence and use it for change." (Anonymous) When I first came upon this quote it kind of made me rethink a lot of my past experiences and how I handled them and what good it did for me in the end. Lots of people go through "rocky roads" in their lives, whether they 're depressed, a rebellious teenager, or have something in their life that sets them up for some kind of "turbulence." Usually that "turbulence" in your life makes you realize you need to…

Overflowing with dramatization, grievousness and loathsomeness, this phenomenal family story of life and death mirrors China 's century of turbulence through the eyes of Jung Chang 's three generations of family: her grandmother, mother and inevitably a life account of herself. In this book, Wild Swans: Three Daughters of China, we get to see the painful effects of Mao’s personality cult, and his painful policies. At age of two, Yu-fang, Jung Chang 's grandmother had her feet bounded. She was…

The article Cosmic Turbulence May Spawn Monster Magnetic Fields discusses a lab experiment that aimed to investigate the mysterious and powerful properties of magnetism in space. Magnetic waves are extremely prominent in our universe, which consists of dense galaxy clusters and vast voids of space separating these clusters. While it seems obvious magnetism would be present in the various galaxy clusters, as they are active regions of space, astronomers have also discovered a very strong magnetic…