Computer study of transition of wall boundary layers, A

January 1972.CER71-72JCA-RNM21.Includes bibliographical references

Effective-viscosity model for turbulent wall boundary layers, An

CER70-71JCA-RNM63.Includes bibliographical references (pages 15-16).Prepared under Office of Naval Research contract no. N00014-68-A-0493-0001; project no. NR 062-414/6-6-68 (Code 438).June 1971.Existing effective viscosity models which have been very valuable in the mean field closure method for turbulent boundary layer computation have shown certain undesirable limitations for certain realistic but general boundary layer flows. The more general flows usually involve non-negligible considerations of pressure gradients and such wall conditions as roughness, curvature and aspiration or transpiration in varying degrees of importance. The effects of these external and wall influences have, unfortunately, been underplayed by most existing effective viscosity models. The present model of the effective viscosity is developed for a general flow and has shown remarkable agreement with experimentation, without being any more complex than existing models

A 21st Century Take on Racial-Ethnic Socialization: Patterns of Competency and Content among Diverse Parents of Color

Racial-ethnic socialization is a process where parents pass beliefs and behaviors to their children, including critical reflections on race and racism. Currently, it is not well known across racial/ethnic groups in the U.S how parents’ socialization competency (confidence, skills, and stress surrounding the delivery of racial-ethnic socialization) coalesces with the frequency with which they deliver different types of socialization messages (socialization content). The current study utilizes latent profile analysis to examine racial-ethnic socialization content and competency patterns among 203 Black, 194 Latinx, and 188 Asian American parents (n = 585, Mage = 44.46, SD = 9.14, 59.70% mothers) with children 10–18 years old (Mage = 14.30, SD = 2.49, 50.3% female). Furthermore, we relate profiles to sociodemographic and relevant factors posited to impact socialization competency and content delivery, namely, discrimination and critical consciousness dimensions (reflection, motivation, action). We observed three parental profiles: Less Prepared Stressed Low Frequency (LPSLF; n = 285), Prepared Low Stress Frequent (PLSF; n = 204), and Prepared Stressed Frequent (PSF; n = 96) socializers. Profile differences emerged on parental and youth sociodemographic factors, lifetime discrimination exposure, and each parental critical consciousness dimension. This study lays a foundation for the combined study of racial-ethnic socialization competence and content in diverse groups, a practice crucial to understanding 21st century parenting

A 21st Century Take on Racial-Ethnic Socialization: Patterns of Competency and Content among Diverse Parents of Color

Racial-ethnic socialization is a process where parents pass beliefs and behaviors to their children, including critical reflections on race and racism. Currently, it is not well known across racial/ethnic groups in the U.S how parents’ socialization competency (confidence, skills, and stress surrounding the delivery of racial-ethnic socialization) coalesces with the frequency with which they deliver different types of socialization messages (socialization content). The current study utilizes latent profile analysis to examine racial-ethnic socialization content and competency patterns among 203 Black, 194 Latinx, and 188 Asian American parents (n = 585, Mage = 44.46, SD = 9.14, 59.70% mothers) with children 10–18 years old (Mage = 14.30, SD = 2.49, 50.3% female). Furthermore, we relate profiles to sociodemographic and relevant factors posited to impact socialization competency and content delivery, namely, discrimination and critical consciousness dimensions (reflection, motivation, action). We observed three parental profiles: Less Prepared Stressed Low Frequency (LPSLF; n = 285), Prepared Low Stress Frequent (PLSF; n = 204), and Prepared Stressed Frequent (PSF; n = 96) socializers. Profile differences emerged on parental and youth sociodemographic factors, lifetime discrimination exposure, and each parental critical consciousness dimension. This study lays a foundation for the combined study of racial-ethnic socialization competence and content in diverse groups, a practice crucial to understanding 21st century parenting