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The Black Hole Spray and the Cosmic Web
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作者 Rami Rom 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2023年第2期519-523,共5页
We propose that the trapped antimatter in super massive black hole ergoregions acts as detonators that triggers black hole to white hole transitions creating huge BHs explosions that generate BH spray that acts as see... We propose that the trapped antimatter in super massive black hole ergoregions acts as detonators that triggers black hole to white hole transitions creating huge BHs explosions that generate BH spray that acts as seeds for new galaxies creation. We propose that by mapping and simulating the cosmic web structure, it may be possible to learn if the universe was created in a single big bang that started a single chain of BH explosions mini-creation event cycles, or alternatively, the BH explosions mini-creation event cycles are uncorrelated spacelike events, and the universe had no single primeval atom beginning. . 展开更多
关键词 Big Bang quasi steady state Cosmology (QSSC) Black Hole (BH) Supper Massive Black Hole (SMBH) White Hole (WH) Ergoregion Dark Matter (DM) Cosmic Web Loop Quantum Gravity (LQG)
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Computational Studies of Flow through Cross Flow Fans-Effect of Blade Geometry 被引量:17
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作者 M . GOVARDHAN D. LAKSHMANA SAMPAT 《Journal of Thermal Science》 SCIE EI CAS CSCD 2005年第3期220-229,共10页
This present paper describes three dimensional computational analysis of complex internal flow in a cross flow fan. A commercial computational fluid dynamics (CFD) software code CFX was used for the computation. RNG k... This present paper describes three dimensional computational analysis of complex internal flow in a cross flow fan. A commercial computational fluid dynamics (CFD) software code CFX was used for the computation. RNG k-ε two equation turbulence model was used to simulate the model with unstructured mesh. Sliding mesh interface was used at the interface between the rotating and stationary domains to capture the unsteady interactions. An accurate assessment of the present investigation is made by comparing various parameters with the available experimental data. Three impeller geometries with different blade angles and radius ratio are used in the present study. Maximum energy transfer through the impeller takes place in the region where the flow follows the blade curvature. Radial velocity is not uniform through blade channels. Some blades work in turbine mode at very low flow coefficients. Static pressure is always negative in and around the impeller region. 展开更多
关键词 cross flow fans computational fluid dynamics quasi steady state multiple frames of reference
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