摘要:

An oscillating water tunnel with a 12 metre long working section of cross-sectional dimensions 0.5 x 1 metre has been designed, built and tested. With this equipment wave boundary layers can be simulated for practically the full range of waves that may be produced in the sea or in wave flumes. The range of orbital amplitudes is 0.1 to 4 metres. To date the system has been used to determine

ISSN:0022-1686    

DOI:10.1080/00221687309499782

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

ISSN:0022-1686    

DOI:10.1080/00221687309499783

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

摘要:

In this paper a flexurally supported shear plate is described. It was designed for use under oscillatory flow where the periods of motion range from 0.5 to 15 seconds. The range of possible shear measurements is ± 100 N/m2with sensitivities as low as 0.015 N/m2. Special emphasis is placed on the calculation of corrections for secondary forces which may contribute a large proportion of the recorded apparent shear. Comparison of the corrected shear with laminar theory gives very good agreement. An example is given to illustrate the results obtained using this shear plate in an oscillating water tunnel for laminar and turbulent flow over both smooth and rough beds.

ISSN:0022-1686    

DOI:10.1080/00221687309499784

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

摘要:

Measurement of temperature distribution, thermal diffusivity and temperature fluctuations have been made in a uniform turbulent flow with a step change in temperature. It is found that the spread of temperature is described by a constant diffusion coefficient which when related to the local turbulence properties compares well with measurements in the core region of open channel flow.

ISSN:0022-1686    

DOI:10.1080/00221687309499785

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

摘要:

DYNAMICS OF FLUIDS IN POROUS MEDIAby JACOB BEAR, Elscvier Publishing Company, P.O. Box 1270, Amsterdam, The Netherlands. Price DA 94,–.

ISSN:0022-1686    

DOI:10.1080/00221687309499786

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor

ISSN:0022-1686    

DOI:10.1080/00221687309499781

出版商:Taylor & Francis Group    

年代:1973

数据来源: Taylor