Turbulent Diffusion Modeling in an Indoor Environment
Author | : William T. Geer |
Publisher | : |
Total Pages | : 222 |
Release | : 1992 |
Genre | : |
ISBN | : |
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Author | : William T. Geer |
Publisher | : |
Total Pages | : 222 |
Release | : 1992 |
Genre | : |
ISBN | : |
Author | : Julian C. R. Hunt |
Publisher | : Oxford University Press, USA |
Total Pages | : 344 |
Release | : 1985 |
Genre | : Atmospheric turbulence |
ISBN | : |
Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Author | : Julian C. R. Hunt |
Publisher | : |
Total Pages | : 100 |
Release | : 1978 |
Genre | : Air |
ISBN | : |
Author | : Darrell W. Pepper |
Publisher | : World Scientific |
Total Pages | : 361 |
Release | : 2009 |
Genre | : Technology & Engineering |
ISBN | : 184816324X |
Design for prevention or remediation of indoor air pollution requires expertise in optimizing geometrical configurations; knowledge of HVAC systems, perceived or expected contaminants and source locations; and economics. This title describes a series of numerical models that run in MATLAB.
Author | : Alfred K. Blackadar |
Publisher | : Springer |
Total Pages | : 204 |
Release | : 1997 |
Genre | : Nature |
ISBN | : |
This book grew out of an introductory course that I was invited to teach on a number of occasions to senior and graduate level students at the University of Kid. I have cherished these opportunities in part because I was never required to conduct examinations or give grades. For the students, however, my good fortune presented special problems that induced my sympathy: in addition to having to contend with a foreign language, they would eventually have to confront an examiner with his own ideas about what they should have learned. Although I always left a copy of my lecture notes with this person, they were too sketchy to be of much use. The present book is an attempt to solve some of these problems. The content is intended to be as broad as possible within the limitations of an introductory one-semester course. It aims at providing an insightful view of present understanding, emphasizing the methods and the history of their development. In particular I have tried to expose the power of intuitive reasoning - the nature of tensor invariants, the usefulness of dimensional analysis, and the relevance of scales of physical quantities in the inference of relationships. I know of no other subject that has benefited more from these important tools, which seem to be widely neglected in the teaching of more fundamental disciplines.
Author | : Weiran Xu |
Publisher | : |
Total Pages | : 170 |
Release | : 1998 |
Genre | : |
ISBN | : |
It is important to predict indoor environment in order to design thermally comfortable and healthy indoor spaces. Heating, Ventilating and Air Conditioning (HVAC) design engineers and architects widely use the Computational Fluid Dynamics (CFD) technique for indoor environment predictions. The CFD technique requires a turbulence model to correctly calculate indoor air distribution. However, the currently available turbulence models in the literature are either inaccurate or inefficient for the indoor environment predictions. To solve the problem, this thesis proposes two two-layer turbulence models and a zero-equation turbulence model. The two-layer models use a one-equation (k) model for the near wall region and the "standard" k -£ model in the outer region. The zero-equation model calculates turbulent viscosity based on local velocity and a length-scale. The near wall models have been developed with the aid of the data of natural and forced convection flows by Direct Numerical Simulation (DNS), while the zero-equation model has been proposed empirically. One of the two-layer turbulence models is used for predicting natural convection in rooms. The other two-layer model and the zero-equation model can be used to predict forced, natural, and mixed convection in rooms. These three new models have been applied to predict different types of indoor airflows. The corresponding DNS or experimental data were used to validate the models. This study concludes that the two-layer models can predict airflows most accurately, better than many k -E models. The computing cost is significantly lower than that of the low Reynolds number k-E models and is only slightly higher than that of the "standard" k-E models. The zero-equation model is at least ten times faster than the "standard" k-E model and it is numerically stable and can predict indoor airflow with acceptable accuracy.
Author | : William H. Bullock |
Publisher | : AIHA |
Total Pages | : 455 |
Release | : 2006 |
Genre | : Hazardous substances |
ISBN | : 1931504695 |
Author | : Wil F. Ten Berge |
Publisher | : AIHA |
Total Pages | : 120 |
Release | : 2000 |
Genre | : Chemical models |
ISBN | : 0932627994 |
Discusses mathematical exposure models which may assist industrial hygienists in determining acceptable exposure limits in the workplace.
Author | : See Hee Shin |
Publisher | : |
Total Pages | : 270 |
Release | : 1980 |
Genre | : Chemistry, Physical and theoretical |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 1048 |
Release | : 1974 |
Genre | : Energy conservation |
ISBN | : |