The final shock wave, when it comes, is weaker and less drastic in its effect of blasting the boundary layer behind it. Such blasting causes high drag and may be disruptive enough to lead to gross loss of lift.
This means that in a race situation, W’ can recover after an initial drop. By hiding in the peloton and drafting behind other riders, your W’ can accumulate sufficiently to mount a blistering attack, of precisely known power and duration. The chart above, generated inGolden Cheetah, shows ...
This can be achieved by tripping the boundary layer into turbulence at a lower Reynolds number, thereby causing the fluid to move further with the surface behind the body resulting in narrower wake and considerably reduced pressure drag. Thus, the drag force is much smaller for rough-surfaced ...
A really interesting, very detailed look at all the physics behind bikes, including aerodynamics, tire resistance, brakes, steering, balance, and the materials from which the components need to be made to resist the forces they experience. The Ultimate Bicycle Book by Richard Ballantine and ...
but I’m climbing well and the slope is falling behind me at a steady rate. With around about 6km to go, everything changes. I go for another gear, but that’s it, I’m out. The “click of doom”. 34/28 is the lowest gear I have fitted and that’s where I’ll stay for ...
SANTA ANA, Calif. (AP) - Shaquille O'Neal swears by them. The Power Balance bracelet, he says, gives him a competitive edge on the court. It's no gimmick, he says. It's for real. It may be for him, but Australian authorities say the California-based company behind the wildly popul...
be. Behind the glass is nothing now but empty space. No door, no window, no vent, no way through or round but to feel the rain of a thousand shards fall to the ground. I try not to howl or jump when I am cut, for cuts heal. And love lives like this: patching ...
point-to-point and even a few licensed tracks to challenge players’ skills behind the wheel. Road Atlanta, Silverstone, Laguna Seca, Tsukuba, Road America and Nürburgring Nordschleife were the licensed courses offered alongside quite a few original tracks inspired by real-world roads and challenges...
of power they are able to sustain, thanks to the high levels of exertion required to compete on Zwift. But in the real world, when it comes to beating other riders in a race or a time trial, the principle force a rider has to overcome is aerodynamic drag, not electromagnetic resistance...
The section behind the nozzle tapers up to the final collector diameter, allowing the flow to decelerate with better pressure recovery than would occur with a sharp transition, and extends the width of the reflected wave. The characteristics of the reflected wave can be tuned with different ...