The Systematic Experiment. A Guide for Engineers and Industrial Scientists . Edited by J. C. G IBBINGS . Cambridge University Press, 1986. 352 pp. £30 (hardback) or £10.95 (paperback). Finite Approximations in Fluid Mechanics II . Edited by E. H. H IRSCHEL . Vieweg, 1989. 423 pp. £39.70. Annual Review of Fluid Mechanics, vol. 23 . Edited by J. L. L UMLEY AND M. D. V AN D YKE . Annual Reviews Inc., 1991. 674 pp. $40. Gas Turbine Fuels and Their Influence on Combustion . By J. O DOERS and D. K RETSCHMER . Abacus Press, 1986. 185 pp. $40 or £27.50. Structures Spatiales Loin de 1'Equilibre . By D. W ALORAEF . Masson, 1988. 182 pp. 240F. Turbulence in Fluids , 2nd Edn. By M. L ESIEUR . Kluwer, 1990. 412 pp. Dfl 120 or $70.

1991 ◽  
Vol 229 (-1) ◽  
pp. 692
1996 ◽  
Vol 319 (-1) ◽  
pp. 410

2021 ◽  
Vol 54 (1) ◽  
Author(s):  
Paul D. Bates

Every year flood events lead to thousands of casualties and significant economic damage. Mapping the areas at risk of flooding is critical to reducing these losses, yet until the last few years such information was available for only a handful of well-studied locations. This review surveys recent progress to address this fundamental issue through a novel combination of appropriate physics, efficient numerical algorithms, high-performance computing, new sources of big data, and model automation frameworks. The review describes the fluid mechanics of inundation and the models used to predict it, before going on to consider the developments that have led in the last five years to the creation of the first true fluid mechanics models of flooding over the entire terrestrial land surface. Expected final online publication date for the Annual Review of Fluid Mechanics, Volume 54 is January 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.


2021 ◽  
Vol 54 (1) ◽  
Author(s):  
Luca Brandt ◽  
Filippo Coletti

This review is motivated by the fast progress in our understanding of the physics of particle-laden turbulence in the last decade, partly due to the tremendous advances of measurement and simulation capabilities. The focus is on spherical particles in homogeneous and canonical wall-bounded flows. The analysis of recent data indicates that conclusions drawn in zero gravity should not be extrapolated outside of this condition, and that the particle response time alone cannot completely define the dynamics of finite-size particles. Several breakthroughs have been reported, mostly separately, on the dynamics and turbulence modifications of small inertial particles in dilute conditions and of large weakly buoyant spheres. Measurements at higher concentrations, simulations fully resolving smaller particles, and theoretical tools accounting for both phases are needed to bridge this gap and allow for the exploration of the fluid dynamics of suspensions, from laminar rheology and granular media to particulate turbulence. Expected final online publication date for the Annual Review of Fluid Mechanics, Volume 54 is January 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.


2012 ◽  
Vol 134 (05) ◽  
pp. 32-37
Author(s):  
Lee S. Langston

This article explores the new developments in the field of gas turbines and the recent progress that has been made in the industry. The gas turbine industry has had its ups and downs over the past 20 years, but the production of engines for commercial aircraft has become the source for most of its growth of late. Pratt & Whitney’s recent introduction of its new geared turbofan engine is an example of the primacy of engine technology in aviation. Many advances in commercial aviation gas turbine technology are first developed under military contracts, since jet fighters push their engines to the limit. Distributed generation and cogeneration, where the exhaust heat is used directly, are other frontiers for gas turbines. Work in fluid mechanics, heat transfer, and solid mechanics has led to continued advances in compressor and turbine component performance and life. In addition, gas turbine combustion is constantly being improved through chemical and fluid mechanics research.


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