Hi Dear All,

I have a question especially to those of my friends that they also work for such types of problems.

My first question is that if we have software like Fluent where we can simulate low Reynolds numbers flows for different bluff bodies such as circular, square and rectangular cylinders. Then why we need to study such problems using numerical methods such as LBM.

My second question is in reality the flow past high rise building and bridges when experimentally treated they used the high Reynolds numbers which is related to actual practical applications. So why we study such types of problems for low Reynolds numbers in two-dimensional environment. And we know that in reality such low Reynolds numbers not play so important role. So we study low Reynolds number flows for square, circular cylinders for what purpose.

Thanks

Yuanchaomei

My first question is that if we have software like

Fluent where we can simulate low Reynolds numbers

flows for different bluff bodies such as circular,

square and rectangular cylinders. Then why we need

to study such problems using numerical methods

such as LBM.

fluent is a tool among others which uses a numerical method among others.

My second question is in reality the flow past

high rise building and bridges when experimentally

treated they used the high Reynolds numbers which

is related to actual practical applications. So

why we study such types of problems for low

Reynolds numbers in two-dimensional environment.

with building and bridges the reynolds number is high, but in other domains like micro-fluidics the reynolds number is low.