Sentence examples for an initial wake from inspiring English sources
The results show that in these cases the initial envelope flame still remains envelope, but the evolution from an initial wake flame to an envelope flame is inhibited.
As the separated wake shape is not known a priori, an initial wake geometry is specified according to an empirical relationship between the airfoil's thickness-to-chord ratio (a 'wake length factor' is introduced, defined as WF ≡ 0.081 × c/t + 1.1) and the extent of separation (represented by the 'wake height', illustrated in Fig. 4).
An initial envelope flame is found to remain envelope in time, and an initial wake flame is always transitioned into an envelope flame at a later time, with the normalized transition delay controlled by the initial Reynolds number and the initial Damkohler number.
As the ambient mass fraction of oxygen increases, the instant of wake-to-envelope transition advances for an initial wake flame, and finally the initial flame becomes an envelope flame when the ambient mass fraction of oxygen exceeds some critical value.
After reviewing the literature, we suggest sampling at least every 15 min following an initial waking sample, for at least 1 h after waking.
The initial wake geometry is specified as per Fig. 4.
The initial wake expansion was assessed by using quantitative dye visualisation to identify the propagation of tip vortices downstream of the rotor.
Dye visualisation indicated that the initial wake expansion downstream of the custom three-bladed rotor narrowed when the Reynolds number was lower than 20,000.
A series of experiments was conducted to evaluate the effect of the Reynolds number on the initial wake expansion and on the thrust coefficient in scaled wind turbine tests.
Ten years ago, in the initial wake of the 11 September 2001 attacks in the US, the idea that robust "executive action" alone could defeat al-Qaeda would probably have held more sway than it does today.
It only causes initial wake-up latency, which is still endurable.
