Development of a Atmospheric Boundary Layer in UTM Loe Speed Wind Tunnel PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Development of a Atmospheric Boundary Layer in UTM Loe Speed Wind Tunnel PDF full book. Access full book title Development of a Atmospheric Boundary Layer in UTM Loe Speed Wind Tunnel by Nur Haziqah Barom. Download full books in PDF and EPUB format.
Author: Nur Haziqah Barom
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
Get Book Here
Book Description
Author: Nur Haziqah Barom
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
Get Book Here
Book Description
Author: Ging Sheng Yap
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 104
Get Book Here
Book Description
Author: Fredric A. Godshall
Publisher:
ISBN:
Category : Boundary layer (Meteorology)
Languages : en
Pages : 214
Get Book Here
Book Description
Author: Kuanmin Kimjuan
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 109
Get Book Here
Book Description
Author: Maximillian Hobson-Dupont
Publisher:
ISBN:
Category : Boundary layer (Meteorology)
Languages : en
Pages : 74
Get Book Here
Book Description
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.
Author: Nicholas Jon Spencer-Berger
Publisher:
ISBN:
Category :
Languages : en
Pages : 104
Get Book Here
Book Description
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.
Author: Norlizaa Mohamad
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 65
Get Book Here
Book Description
Wind tunnel is one of the tools that used in the aerodynamics research to recognize the air flow moving through a solid. It is not only been used in automotive but also in the construction of the building. Develop of the wind tunnel require specific parameters that need to be consider. Parameters such as contraction ratio and diffuser angle plays an important role to obtain a good result to the model. To have a better understanding about thermo fluids, the development of low speed wind tunnel are required. From the subsonic wind tunnel, the study is to determine the best contraction ratio of the flow quality of the air in the exit. The study is conducted by fabricate the low speed wind tunnel and by using Computational Fluids Dynamic (CFD) to obtain the data for different contraction ratio. The varying velocity and the boundary layer thickness between different contraction ratio will be attempted. The selection of the contraction ratio in designing the wind tunnel can affect the fluids flow. As the higher contraction ratio, the higher velocity at the test section can be obtained, reduced power loss and thin thickness of the boundary layer can achieved.
Author: John Robert Massey
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
Get Book Here
Book Description
Author: Jack E. Cermak
Publisher:
ISBN:
Category : Wind tunnels
Languages : en
Pages : 25
Get Book Here
Book Description
Presents the evolution of physical-modeling techniques to simulate wind and wind effects. Characteristics of atmospheric boundary layers (ABLs) are reviewed and features that require modeling for wind-engineering applications are defined. Similarity criteria are presented for "exact" similarity and necessary approximations are discussed. Special features of wind tunnels needed to achieve the modeling requirements are identified. Comparisons are made of data measured in the field and in a boundary-layer wind tunnel. Wind tunnels with special capabilities for modeling the ABL are described.
Author: Javier Huitron
Publisher:
ISBN:
Category :
Languages : en
Pages : 378
Get Book Here
Book Description
