Choked flow is a fluid dynamic condition associated with the Venturi effect. When a flowing fluid at a given pressure and temperature passes through a restriction (such as the throat of a convergent-divergent nozzle or a valve in a pipe) into a lower pressure environment the fluid velocity increases.
Red wine varietals that tend to benefit from a good bit of oak include: Pinot Noir, Cabernet Sauvignon, Merlot, Pinotage, Chianti, Zinfandel, Nebbiolo, Tempranillo and Syrah. White wine varietals that are receptive to oakâs influence include: Pinot Grigio, Pinot Blanc, Sauvignon Blanc, Semillon and of course Chardonnay.
Fortified Wines: Porto, Sherry, and Madeira. Fortified wines are fortified by the addition of extra alcohol in the form of brandy or spirits to bring them up to an alcohol content of 18%â20%. Porto, Sherry, Madeira, Marsala, and Vermouth are all fortified wines. If the extra alcohol is added after fermentation, a dry fortified wine such as Sherry is the outcome.