Forecasters are warning that virtually the entire United States is about to be engulfed in a deep freeze, as a distorted polar vortex prepares to unleash Arctic air from the northern Plains to the ...

A strong blast of Arctic air will drive temperatures sharply lower from the Midwest to the interior Northeast this weekend, bringing the season’s coldest weather so far for many, forecasters say.

Abstract: Direct numerical simulation (DNS) results is reported here, without modifying the governing Navier-Stokes equation by removing all sources of errors due to ...