{"title":"PRESSURE DROP CHARACTERISTICS OF CIRCUIT BOARD WITH ARRAYS OF LSI PACKAGES","authors":"H. Matsushima, T. Yanagida, W. Nakayama","doi":"10.1299/KIKAIB.59.1244","DOIUrl":null,"url":null,"abstract":"Experimental investigation was performed to study the pressure drop characteristics of parallel-plate channels where model packages of various sizes are mounted. The ratio of channel height to package height and placement pitch to package height are 1.3∼2.7 and 1.8∼5.6 for packages without fins, and 1.2∼2.0 and 2.1∼3.4 for finned packages, respectively. A new flow model is proposed which incorporates the three-dimensional nature of wakes behind the packages. The predicted values of pressure drop based on this model correlate with the experimental results within ±20∼30%.","PeriodicalId":168856,"journal":{"name":"Proceeding of Transport Phenomena in Thermal Engineering. Volume 2","volume":"21 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1993-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceeding of Transport Phenomena in Thermal Engineering. Volume 2","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1299/KIKAIB.59.1244","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Experimental investigation was performed to study the pressure drop characteristics of parallel-plate channels where model packages of various sizes are mounted. The ratio of channel height to package height and placement pitch to package height are 1.3∼2.7 and 1.8∼5.6 for packages without fins, and 1.2∼2.0 and 2.1∼3.4 for finned packages, respectively. A new flow model is proposed which incorporates the three-dimensional nature of wakes behind the packages. The predicted values of pressure drop based on this model correlate with the experimental results within ±20∼30%.
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