On the dynamics of axisymmetric turbulent separating/reattaching flows

Abstract

The authors hypothesized that both narcissism and high selfesteem are associated with positive self-views but each is associated with positivity in different domains of the self. Narcissists perceive themselves as better than average on traits reflecting an agentic orientation (e.g., intellectual skills, extraversion) but not on those reflecting a communal orientation (e.g., agreeableness, morality). In contrast, high-self-esteem individuals perceive themselves as better than average both on agentic and communal traits. Three studies confirmed the hypothesis. In Study 1, narcissists rated themselves as extraverted and open to experience but not as more agreeable or emotionally stable. High-selfesteem individuals rated themselves highly on all of these traits except openness. In Study 2, narcissists (but not high-self-esteem individuals) rated themselves as better than their romantic partners. In Study 3, narcissists rated themselves as more intelligent, but not more moral, than the average person. In contrast, highself-esteem individuals viewed themselves as more moral and more intelligent.

Comparative assessment of pressure field reconstructions from particle image velocimetry measurements and Lagrangian particle tracking

“…A dedicated ZDES simulation (Deck 2005(Deck , 2012) is performed building on ample experience with applying ZDES to axisymmetric base flows (e.g., Deck and Thorigny 2007;Weiss et al 2009;Weiss and Deck 2011). ZDES is closely related to the classical detached eddy simulation (DES).…”

Simulation of afterbody transonic flows using partially-averaged navier stokes model for turbulence

“…In these computations, the grids were noticeably ¦ner and it was shown that azimuthal resolution had a dramatic e¨ect on the results. An accuracy of about 15% was obtained with 2.5 • between each plane [2] and around 5% [12] with 1.5 • (5 • was retained for the present study). The greater azimuthal resolution probably enhances the mixing thus leading to a greater disorganization and dissipation of the coherent vortices.…”

“…The vortices must be too coherent and their three-dimensionality nature underevaluated. The DES simulations [2,12] are Figure 4 Longitudinal distribution of the unsteady pressure coe©cient: 1 ¡ PANS simulation; and 2 ¡ experiments found to give a better estimation of the §uctuation levels on the same con¦gu-ration. In these computations, the grids were noticeably ¦ner and it was shown that azimuthal resolution had a dramatic e¨ect on the results.…”

Automatic Hybrid RANS/LES Strategy for Industrial CFD

“…This is rather coarse, but allows keeping computational costs to within an industrially acceptable level. Results are compared to the available experimental data [13,14] and to ZDES calculations [15,16] with differents grids listed in the Table 2. Figure 8 represents a snapshot of the instantaneous flow field, showing the coherent structures in the recirculation area downstream of the backward facing step.…”