Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Ashraf S. Sabry"'
Publikováno v:
Renewable Energy. 159:414-426
Axial impulse turbines have been utilized for oscillating water column wave-energy conversion because of their wide operating range without stalling point. Previous studies in the oscillating-flow environment gave no information on the performance of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcabeb6782f8e88458228cb242ec7928
https://doi.org/10.1016/j.renene.2020.05.162
https://doi.org/10.1016/j.renene.2020.05.162
Publikováno v:
The Journal of the Acoustical Society of America. 145(3)
The flow transition from laminar to turbulent inside of typical thermoacoustic devices influences the heat-exchange capacities of these devices and dramatically impacts overall performances as well. A few measurements [Eckmann and Grotberg (1991), J.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6df046bfe93bce4c291bf18915fc92d
https://pubmed.ncbi.nlm.nih.gov/31067919
https://pubmed.ncbi.nlm.nih.gov/31067919
Publikováno v:
Journal of Sound and Vibration. 278:63-81
A quasi-one-dimensional characteristic based non-linear model for unsteady compressible flow is used to simulate the flow in single-pass perforated tube silencers. The flow in both short and long concentric tube resonators is simulated for both low a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93db1e3cdb41b295794a454123865c28
https://doi.org/10.1016/j.jsv.2003.09.062
https://doi.org/10.1016/j.jsv.2003.09.062
Publikováno v:
International Journal of Aeroacoustics. 3:137-155
Based on the method of characteristics, a time domain non-linear model for unsteady compressible flow is used to simulate the flow in multi-pass perforated tube silencers. In the present work, the flow in both two and three pass anechoically terminat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb62802ac21934f8dd67229bcb630ee7
https://doi.org/10.1260/1475472041494792
https://doi.org/10.1260/1475472041494792
Publikováno v:
Volume 5: 6th International Conference on Micro- and Nanosystems; 17th Design for Manufacturing and the Life Cycle Conference.
This paper is devoted to critically analyse the simulation validity of flow regimes in large rooms and enclosed spaces using commercially available computational fluid dynamics code. This assessment is carried out through detailed comparisons between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a31ffd084f2083dbf5c4bc665b2b28d
https://doi.org/10.1115/detc2012-70285
https://doi.org/10.1115/detc2012-70285
Autor:
Joseph T. C. Liu, Ashraf S. Sabry
Publikováno v:
Journal of Fluid Mechanics. 231:615-663
The nonlinear effects of longitudinal vorticity elements in boundary layers are studied via a prototype problem: the development of such vorticity elements from initial Görtler vortices in the amplified regime. While a time-dependent, quasi-two-dime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91b3c168d4db802bd0f1bab0c1a6d7fe
https://doi.org/10.1017/s0022112091003543
https://doi.org/10.1017/s0022112091003543
Autor:
Joseph T. C. Liu, Ashraf S. Sabry
Publikováno v:
Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences. 432:1-12
The similarity between heat, mass and streamwise-momentum transfer for the nonlinear Gortler vortex problem is pointed out. Quantitative interpretation of enhanced surface heat and mass transfer rates for unity Prandtl and Schmidt numbers are given.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::690c2a305be6832db60d2e96826a4d2a
https://doi.org/10.1098/rspa.1991.0001
https://doi.org/10.1098/rspa.1991.0001
Publikováno v:
International Journal of Aeroacoustics; Apr2004, Vol. 3 Issue 2, p137-155, 19p
Publikováno v:
Laminar-Turbulent Transition ISBN: 9783642841057
We consider the problem of “high frequency” secondary instability of nonlinearly developed and strongly modified Gortler vortices initiated at finite Gortler and wave numbers in the amplified region. Local linear stability analyses of relevant cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d583ba57dd72d0ec3b66e82b0cc1ee13
https://doi.org/10.1007/978-3-642-84103-3_40
https://doi.org/10.1007/978-3-642-84103-3_40
Publikováno v:
Journal of Solar Energy Engineering. 106:416-422
This paper deals with the analysis of the tracking errors of a self-contained solar tracking system that is totally powered by solar energy. The effect of the different design parameters of the system on its tracking error is studied in detail, in an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9277fb2f01380379f3ae40966254bee
https://doi.org/10.1115/1.3267620
https://doi.org/10.1115/1.3267620