Download or read book Development of a Nonstationary Flow Device for an Atmospheric Boundary Layer Wind Tunnel written by Nicholas Jon Spencer-Berger and published by . This book was released on 2003 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Iowa State University researchers are in the process of developing a new wind tunnel. This tunnel will be able to perform a wide range of tests. It will not only be used in an aerodynamic (Aero) test section configuration, but also in an atmospheric boundary layer (ABL) type configuration. It will be able to create a model of the turbulent boundary layer that all structures in the atmosphere are submersed in. The tunnel is designed to utilize both closed return as well as open return tunnel configurations. This will enable the tunnel to reap the benefits of both types of tunnels. Currently most of the ABL studies rely on the assumption that atmospheric velocity variations are adequately modeled by stationary mean and turbulent flow properties. The ISU Aero/ABL tunnel will be able to develop non-stationary flows to help better study and understand this type of phenomena. The primary concern and area of research reported here has been to develop this non-stationary flow device by modeling and testing the design. The results shown reflect that a 107% gust can be achieved by the model, but with some changes to the design, a higher magnitude gust can be achieved.

Download or read book Artificial Development of an Atmospheric Boundary Layer Flow Model in a Wind Tunnel written by Fredric A. Godshall and published by . This book was released on 1973 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Development of a Small Scale Wind Tunnel Simulating the Atmospheric Boundary Layer in Support of a Stochastic Wind Model written by Maximillian Hobson-Dupont and published by . This book was released on 2015 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been much success in atmospheric boundary layer simulation with medium sized closed-circuit wind tunnels with test section dimensions of approximately 1 x 1 m. However, smaller, blower-type wind tunnels are more common in university laboratories due to the lower cost and smaller space requirements. A small size, open flow wind tunnel with a 1 x 1 foot test section was modified to simulate the atmospheric boundary layer with a combination of upstream spires and cubic roughness elements. The primitive spire geometry detailed in the literature was found to yield poor agreement with the power law velocity profile of interest, and a novel iterative algorithm was developed to produce nonlinear spire geometry. The geometry generated by the algorithm was tested in the wind tunnel and found to simulate the desired velocity profile based on a Hellman exponent of 0.20 with a high degree of agreement, having a maximum velocity error of 4%. This confirmed the suitability of small-sized wind tunnels for simulating the atmospheric boundary layer.

Download or read book Proceedings written by Jack E. Cermak and published by . This book was released on 1975 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of an Atmospheric Boundary Layer Wind Tunnel written by Ging Sheng Yap and published by . This book was released on 2007 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Development of an Atmospheric Boundary Layer Wind Tunnel written by Kuanmin Kimjuan and published by . This book was released on 2006 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind Tunnels and Experimental Fluid Dynamics Research written by Jorge Colman Lerner and published by BoD – Books on Demand. This book was released on 2011-07-27 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book "Wind Tunnels and Experimental Fluid Dynamics Research" is comprised of 33 chapters divided in five sections. The first 12 chapters discuss wind tunnel facilities and experiments in incompressible flow, while the next seven chapters deal with building dynamics, flow control and fluid mechanics. Third section of the book is dedicated to chapters discussing aerodynamic field measurements and real full scale analysis (chapters 20-22). Chapters in the last two sections deal with turbulent structure analysis (chapters 23-25) and wind tunnels in compressible flow (chapters 26-33). Contributions from a large number of international experts make this publication a highly valuable resource in wind tunnels and fluid dynamics field of research.

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1978 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind Tunnel Experiments on Turbulent Boundary Layer Flows written by Adrián R. Wittwer and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The knowledge and experimental development of boundary layer turbulent flows is extremely important in applications related to the building aerodynamics, wind comfort, atmospheric dispersion, and even aeronautics. The Aerodynamic Laboratories of the UFRGS and UNNE have been making joint activities related to wind engineering such as those mentioned earlier for more than 25 years. In this work, a compilation of different experiments on turbulent boundary layer flows realized in these both laboratories is carried out. The characteristics of flows that develop on a smooth surface of the wind tunnel are experimentally evaluated. Then, reduced-scale models of atmospheric boundary layer flows are analyzed including the effects of turbulence generators and surface roughness. Special attention on the behavior of the turbulent parameters in the case of experimental studies using low mean velocity is paid. Finally, some comments referring to recent studies on thermal effects in turbulent boundary layer flows and the development of reduced-scale models of convective flows are included.

Download or read book Commencement written by Iowa State University and published by . This book was released on 2001 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Japanese Science and Technology written by and published by . This book was released on 1986 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind and Seismic Effects written by United States-Japan Cooperative Program in Natural Resources. Joint Panel Conference and published by . This book was released on 2006 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Steady state Flow Quality in a Model of a Non return Wind Tunnel written by and published by . This book was released on 1972 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aeronautical Engineering written by and published by . This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Master s Theses Directories written by and published by . This book was released on 2004 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Education, arts and social sciences, natural and technical sciences in the United States and Canada".

Download or read book Air Pollution XX written by James W. S. Longhurst and published by WIT Press. This book was released on 2012 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains papers presented at the twentieth in a series of annual International Conferences dealing with Modelling, Monitoring and Management of Air Pollution. The papers deal with advances in a wide variety of topics, including: Air Pollution Modelling; Air Quality Management; Emission Studies; Monitoring and Measuring; Aerosols and Particles; Atmospheric Chemistry; Indoor Air Pollution; Policy Studies; Climate Change and Air Pollution; Regional and Global Studies; Exposure and Health Effects; Rural Pollution Studies; Air Pollution Effects on Ecosystems; Air Pollution Mitigation; Case Studies.