Can i find out the drag co-efficient using cosmos floworksxpress?
I started an answer, but lost the screen. Please contact me direct on firstname.lastname@example.org, to run free of the constraints of the website. I have quite a bit to contribute on this item. I write as a Naval Architect, which profession has a large background in model testing for drag. The bicycle + rider is quite complex, with the additional effects of pedalling action of the rider's legs plus wheel rotation. With no experience of Cosmos floworsxpress, I can't judge the original question, but can see that it would be quite complex computationally. I would put my money on full scale model tests, in a wind tunnel (ideally), or on a road-based driven rig, with suitable force measurement equipment. It could be well worth starting with a non-pedallling, fixed wheels model.You can at least use full scale model, and run it at design speeds quite readily. It may be more profitable to seek answers from researchers/testers supporting the campaigns for Olympic gold medals in cycling. Try the wind tunnel community. Another way would be to look at input power (sports physiologists?), the rolling resistance (probably a fairly small component of total drag), with residue as air drag; hence coefficient. Peter Edmonds Perth Western Australia. (I am new to working this site, inaugural response.)