Highly turbulent natural circulation in an enclosed tall rod bundle is investigated using Large Eddy Simulation (LES). The consists of 36 heated rods and insulated central tubeenclosed by a cooled containment wall. This geometry directly relevant to nuclear fuel bundles generic heat exchangers. For bundles, importance accident scenarios. A 60° azimuthally periodic sector the modelled. Rayleigh ...

Portal hypertension, a major hallmark of cirrhosis, is defined as a portal pressure gradient exceeding 5 mm Hg. In portal hypertension, porto-systemic collaterals decompress the portal circulation and give rise to varices. Successful management of portal hypertension and its complications requires knowledge of the underlying pathophysiology, the pertinent anatomy, and the natural history of the...

Abstract We found severe acute respiratory syndrome coronavirus 2 RNA in 6 (8.4%) of 71 ferrets central Spain and isolated sequenced virus from 1 oral rectal swab specimen. Natural infection occurs kept when circulation among humans is high. However, small ferret collections probably cannot maintain circulation.

In this study, we examined the responses of East Asian summer monsoon (EASM) to natural (solar variability and volcanic aerosols) and anthropogenic (greenhouse gasses and aerosols) forcings simulated in the 17 latest Coupled Model Intercomparison Program phase 5 models with 105 realizations. The observed weakening trend of low-level EASM circulation during 1958–2001 is partly reproduced under a...

atmospheric circulation patterns are responsible for drought and flood occurrences around the globe specifically in moderate mid latitude climates. while some circulation patterns are responsible for wet spells and floods as well, the drought events can be attributed to some other circulation patterns. therefore, identification and distinction of dry/wet producing patterns and the geographical ...

MIT has been benchmarking Japanese and German NACOK air ingress tests using the FLUENT code for approximately three years [1]. The first benchmark study was for Japan Atomic Energy Research Institute’s (JAERI) isothermal and non-isothermal experiments [2] which investigate molecular diffusion of N2, and He under isothermal and natural circulation conditions, respectively. Another set of benchma...