You're analyzing flow dynamics in a test section of wind tunnel, but you're dissatisfied with the resolution of your analysis because you can't see all the small turbulent effect. in order to get a clearer idea of micro flow dynamics you decrease the gap between your grid points by a factor of 100? a. by what factor does the number of points in your test section increase? b. what phenomenon does this problem demonstrate? c. how might richardson extrapolation in this scenario?

Determine the time of the day and month of the year at which the peak sensible cooling load occurs for a top floor, north-eastern corner room of an office building in durban for the following conditions: floor area: 8 x 8 x 3 m east and north walls: 115 mm face brick (outside), 20 mm air space, 115 mm ordinary brick (inside) with 15 mm plaster roof construction: suspended plasterboard ceiling, 450 mm air space, 150 mm concrete, 75mm screed, waterproofing no heat transfer across other surfaces window area 3x 1,5 m high in north wall only. ordinary glass with venetian blinds. lights and occupants : from 07: 00 to 18: 00 average light density: 25 w/m2 number of occupants : 5 seated, light office work room temperature 24°c