Matches in SemOpenAlex for { <https://semopenalex.org/work/W2113302812> ?p ?o ?g. }
- W2113302812 startingPage "07796" @default.
- W2113302812 abstract "Summary Predicting transition onset remains a daunting task evenwith the state-of-the-art computing facilities. At the lowestfidelity, transition may be predicted by using a prescribedN-factor and a simple linear stability or parabolized sta-bility theory. Depending on the accuracy requirement, theN-value may come from empirical correlations with exist-ing wind tunnel or flight experiments, or from a commonlyused value such as 10. The major problem of this approachlies in the N-value itself. According to past experiences,the transition N-value may vary from as small as 2 or 3for a noisy facility to as high as 15 or 20 in flight. Thus,for a new configuration, determining the N value is itself adifficult task. Despite this uncertainty, N-factor correlationremains the most viable method for transition predictiondue to its simplicity. LASTRAC provide both LST- andPSE-based N-factor correlation capability.For a given mean flow, a possible unstable frequencyrange is suggested by LASTRAC and by using the max-imizing N-factor option, users may obtain an unstableparameter range of disturbance frequency and spanwisewavelength with minimum effort and little prior knowledgeof the mean flow under consideration. Further linear calcu-lations using either quasi-parallel LST or nonparallel PSEmay be launched to obtain an envelop of N-factors formedby a broad range of unstable modes. The N-factor envelopethen can be used for transition correlations or predictions.LASTRAC also provides the capability to compute dis-turbance evolution based on an absolute amplitude. Non-linear PSE calculations may be performed for a numberof unstable modes with a finite amplitude. We show sev-eral test cases in which the boundary layer is perturbedwith a given amplitude and transition is captured by us-ing the nonlinear PSE option. Coupled with the receptivitymodel which will be incorporated in the near future, LAS-TRAC offers a transition prediction tool that may be used tocompute transition onset without any modeling or N-factorassumptions.It is also demonstrated that LASTRAC may be used forparametric studies of several supersonic laminar flow con-trol concepts. We presented two such techniques, thermaland distributed roughness control. The test cases shown inthis paper cover a broad range of flow configurations. In ad-dition to the traditional N-factor method, LASTRAC offersa comprehensive set of options based on the state-of-the-artnumerical methods that may be used for the stability calcu-lations and transition predictions in an integrated fashion." @default.
- W2113302812 created "2016-06-24" @default.
- W2113302812 creator A5080240078 @default.
- W2113302812 date "2003-01-01" @default.
- W2113302812 modified "2023-09-25" @default.
- W2113302812 title "The Langley Stability and Transition Analysis Code (LASTRAC) : LST, Linear and Nonlinear PSE for 2-D, Axisymmetric, and Infinite Swept Wing Boundary Layers" @default.
- W2113302812 cites W147664901 @default.
- W2113302812 cites W1513612082 @default.
- W2113302812 cites W1669403848 @default.
- W2113302812 cites W1971210953 @default.
- W2113302812 cites W1991965208 @default.
- W2113302812 cites W1998017916 @default.
- W2113302812 cites W2001604914 @default.
- W2113302812 cites W2020290623 @default.
- W2113302812 cites W2021626400 @default.
- W2113302812 cites W2048408122 @default.
- W2113302812 cites W2084465913 @default.
- W2113302812 cites W2087559764 @default.
- W2113302812 cites W2090112172 @default.
- W2113302812 cites W2090427003 @default.
- W2113302812 cites W209043569 @default.
- W2113302812 cites W2091859446 @default.
- W2113302812 cites W2119497073 @default.
- W2113302812 cites W2151483547 @default.
- W2113302812 cites W2170902306 @default.
- W2113302812 cites W2186263784 @default.
- W2113302812 cites W2312458249 @default.
- W2113302812 cites W2313196310 @default.
- W2113302812 cites W2316464598 @default.
- W2113302812 cites W2324125705 @default.
- W2113302812 cites W2334714895 @default.
- W2113302812 cites W2335115428 @default.
- W2113302812 cites W2607389694 @default.
- W2113302812 cites W2185901441 @default.
- W2113302812 hasPublicationYear "2003" @default.
- W2113302812 type Work @default.
- W2113302812 sameAs 2113302812 @default.
- W2113302812 citedByCount "3" @default.
- W2113302812 crossrefType "journal-article" @default.
- W2113302812 hasAuthorship W2113302812A5080240078 @default.
- W2113302812 hasConcept C100086909 @default.
- W2113302812 hasConcept C105795698 @default.
- W2113302812 hasConcept C112972136 @default.
- W2113302812 hasConcept C119857082 @default.
- W2113302812 hasConcept C120665830 @default.
- W2113302812 hasConcept C121332964 @default.
- W2113302812 hasConcept C121864883 @default.
- W2113302812 hasConcept C127413603 @default.
- W2113302812 hasConcept C13393347 @default.
- W2113302812 hasConcept C146978453 @default.
- W2113302812 hasConcept C158622935 @default.
- W2113302812 hasConcept C180205008 @default.
- W2113302812 hasConcept C204323151 @default.
- W2113302812 hasConcept C207390838 @default.
- W2113302812 hasConcept C2524010 @default.
- W2113302812 hasConcept C33026886 @default.
- W2113302812 hasConcept C33923547 @default.
- W2113302812 hasConcept C38349280 @default.
- W2113302812 hasConcept C41008148 @default.
- W2113302812 hasConcept C44154836 @default.
- W2113302812 hasConcept C57879066 @default.
- W2113302812 hasConcept C59681308 @default.
- W2113302812 hasConcept C62520636 @default.
- W2113302812 hasConceptScore W2113302812C100086909 @default.
- W2113302812 hasConceptScore W2113302812C105795698 @default.
- W2113302812 hasConceptScore W2113302812C112972136 @default.
- W2113302812 hasConceptScore W2113302812C119857082 @default.
- W2113302812 hasConceptScore W2113302812C120665830 @default.
- W2113302812 hasConceptScore W2113302812C121332964 @default.
- W2113302812 hasConceptScore W2113302812C121864883 @default.
- W2113302812 hasConceptScore W2113302812C127413603 @default.
- W2113302812 hasConceptScore W2113302812C13393347 @default.
- W2113302812 hasConceptScore W2113302812C146978453 @default.
- W2113302812 hasConceptScore W2113302812C158622935 @default.
- W2113302812 hasConceptScore W2113302812C180205008 @default.
- W2113302812 hasConceptScore W2113302812C204323151 @default.
- W2113302812 hasConceptScore W2113302812C207390838 @default.
- W2113302812 hasConceptScore W2113302812C2524010 @default.
- W2113302812 hasConceptScore W2113302812C33026886 @default.
- W2113302812 hasConceptScore W2113302812C33923547 @default.
- W2113302812 hasConceptScore W2113302812C38349280 @default.
- W2113302812 hasConceptScore W2113302812C41008148 @default.
- W2113302812 hasConceptScore W2113302812C44154836 @default.
- W2113302812 hasConceptScore W2113302812C57879066 @default.
- W2113302812 hasConceptScore W2113302812C59681308 @default.
- W2113302812 hasConceptScore W2113302812C62520636 @default.
- W2113302812 hasLocation W21133028121 @default.
- W2113302812 hasOpenAccess W2113302812 @default.
- W2113302812 hasPrimaryLocation W21133028121 @default.
- W2113302812 hasRelatedWork W1639085241 @default.
- W2113302812 hasRelatedWork W1655499502 @default.
- W2113302812 hasRelatedWork W1669403848 @default.
- W2113302812 hasRelatedWork W1923144262 @default.
- W2113302812 hasRelatedWork W1967692875 @default.
- W2113302812 hasRelatedWork W1992103102 @default.
- W2113302812 hasRelatedWork W2018153254 @default.
- W2113302812 hasRelatedWork W2020290623 @default.
- W2113302812 hasRelatedWork W2037463356 @default.
- W2113302812 hasRelatedWork W2061953914 @default.