A linear stability analysis is performed for a plume flow inside a cylinder of aspect ratio 1. The configu- ration is identical to that used by Lopez and Marques （2013） for their direct numerical simulation study, I...A linear stability analysis is performed for a plume flow inside a cylinder of aspect ratio 1. The configu- ration is identical to that used by Lopez and Marques （2013） for their direct numerical simulation study, It is found that the first bifurcation, which leads to a periodic axisymmetric flow state, is accurately pre- dicted by linear analysis： both the critical Rayleigh number and the global frequency are consistent with the reported DNS results. It is further shown that pressure feedback drives the global mode, rather than absolute instability.展开更多
Tomas Lindahl completed his medical studies at Karolinska Institute in 1970.Yet,his work has always been dedicated to unraveling fundamental mechanisms of DNA decay and DNA repair.His research is characterized with gr...Tomas Lindahl completed his medical studies at Karolinska Institute in 1970.Yet,his work has always been dedicated to unraveling fundamental mechanisms of DNA decay and DNA repair.His research is characterized with groundbreaking discoveries on the instability of our genome,the identification of novel DNA repair activities,the characterization of DNA repair pathways,and the association to diseases,throughout his 40 years of scientific career.展开更多
基金provided by the Agence Nationale de la Recherche under the "Cool Jazz" project
文摘A linear stability analysis is performed for a plume flow inside a cylinder of aspect ratio 1. The configu- ration is identical to that used by Lopez and Marques （2013） for their direct numerical simulation study, It is found that the first bifurcation, which leads to a periodic axisymmetric flow state, is accurately pre- dicted by linear analysis： both the critical Rayleigh number and the global frequency are consistent with the reported DNS results. It is further shown that pressure feedback drives the global mode, rather than absolute instability.
文摘Tomas Lindahl completed his medical studies at Karolinska Institute in 1970.Yet,his work has always been dedicated to unraveling fundamental mechanisms of DNA decay and DNA repair.His research is characterized with groundbreaking discoveries on the instability of our genome,the identification of novel DNA repair activities,the characterization of DNA repair pathways,and the association to diseases,throughout his 40 years of scientific career.
