A simple, but general, horizontal momentum budget for inviscid (cid:143) ow is developed to understand how the vertical (cid:143) ux of horizontal momentum varies with height in a mountain-forced trapped lee-wave train. Taking a sinusoidal form for the wave (cid:142) eld, from the analytical solution for a two-layer Scorer-parameter atmosphere, the constant Bernoulli functional on a streamline is used to diagnose the momentum (cid:143) ux. It is shown that in an inviscid, steady wave train the magnitude of the momentum (cid:143) ux decreases with height as a sinusoidal function. The present theory clearly shows how this pro(cid:142) le of momentum (cid:143) ux with height is a direct consequence of the exact balance between the vertical derivative of momentum (cid:143) ux and the dynamic pressure difference across the mountain in steady state. The simple analytic pro(cid:142) le of (cid:143) ux with height shows a remarkable qualitative similarity with numerical-model results from idealized case-studies of (cid:143) ow over an isolated mountain ridge.
{"title":"Momentum","authors":"M. McCluskey","doi":"10.1201/9780429506437-8","DOIUrl":"https://doi.org/10.1201/9780429506437-8","url":null,"abstract":"A simple, but general, horizontal momentum budget for inviscid (cid:143) ow is developed to understand how the vertical (cid:143) ux of horizontal momentum varies with height in a mountain-forced trapped lee-wave train. Taking a sinusoidal form for the wave (cid:142) eld, from the analytical solution for a two-layer Scorer-parameter atmosphere, the constant Bernoulli functional on a streamline is used to diagnose the momentum (cid:143) ux. It is shown that in an inviscid, steady wave train the magnitude of the momentum (cid:143) ux decreases with height as a sinusoidal function. The present theory clearly shows how this pro(cid:142) le of momentum (cid:143) ux with height is a direct consequence of the exact balance between the vertical derivative of momentum (cid:143) ux and the dynamic pressure difference across the mountain in steady state. The simple analytic pro(cid:142) le of (cid:143) ux with height shows a remarkable qualitative similarity with numerical-model results from idealized case-studies of (cid:143) ow over an isolated mountain ridge.","PeriodicalId":415009,"journal":{"name":"No-Frills Physics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133953202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
cloning. Target sequence can be cloned into the vector via BamH I and BsmB I sites. pGuide and pGuide-EF1a-GFP vectors contain the ampicillin resistance gene for the selection of E. coli transformants. pLenti-Guide-Puro contains chloramphenicol resistance for E. Coli selection.
{"title":"Vectors","authors":"M. McCluskey","doi":"10.1201/9780429506437-2","DOIUrl":"https://doi.org/10.1201/9780429506437-2","url":null,"abstract":"cloning. Target sequence can be cloned into the vector via BamH I and BsmB I sites. pGuide and pGuide-EF1a-GFP vectors contain the ampicillin resistance gene for the selection of E. coli transformants. pLenti-Guide-Puro contains chloramphenicol resistance for E. Coli selection.","PeriodicalId":415009,"journal":{"name":"No-Frills Physics","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131559845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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