Jewkes, James, Chung, Yongmann M. and Carpenter, P. W. (2011) Modifications to a turbulent inflow generation method for boundary-layer flows. AIAA Journal, Vol.49 (No.1). pp. 247-250. doi:10.2514/1.J050318 ISSN 0001-1452.

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Abstract

NUMERICAL simulations of turbulent boundary layers require
inflow/outflow boundary conditions. Downstream flow is
particularly sensitive to the inlet boundary condition; it is necessary to provide a realistic, coherent series of time-varying velocity components to avoid wasteful and potentially costly readjustment behavior. Simple periodic boundary conditions (where downstream flow is reapplied at the inlet), while suitable for channel or pipe flow
simulations, are poorly suited to spatially developing flows such as flat-plate boundary layers [1]. Lund et al. [2] (LWS) developed a quasi-periodic approach using an accurate scaling technique. This method used recycling of the downstream data to provide the inlet boundary condition on the inflow simulation (illustrated in Fig. 1). It has been successfully applied in both incompressible and compressible boundary-layer simulations [3–5]. Despite the wealth of publications that have successfully applied this method, a number of studies [5–10] have indicated that some aspects of LWS method can prove difficult to implement. Hurdles include spurious periodicity, error accumulation, and initial conditions. The main objective of this Technical Note is to propose simple modification to the original LWS formulation to address these issues, and also to avoid use of the 99%
boundary-layer thickness.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH):	Fluid dynamics, Turbulence, Turbulent boundary layer
Journal or Publication Title:	AIAA Journal
Publisher:	American Institute of Aeronautics and Astronautics, Inc.
ISSN:	0001-1452
Official Date:	January 2011
Dates:	Date Event January 2011 Published
Volume:	Vol.49
Number:	No.1
Page Range:	pp. 247-250
DOI:	10.2514/1.J050318
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Date of first compliant deposit:	17 December 2015
Date of first compliant Open Access:	17 December 2015
Funder:	Engineering and Physical Sciences Research Council (EPSRC)
Grant number:	EP/G069581/1 (EPSRC)

Data sourced from Thomson Reuters' Web of Knowledge

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