Quenching distance/length

Liftoff height with jet velocity in free jet [10] (H attached flame length, quenching distance, Hp liftoff height, L premixed flame length). 

Length of the high-temperature zone behind a flame as a function of quenching distance. Downward propagation in lean propane/air mixture. 

The quenching distance detonation limit comes about if the induction period or reaction zone length increases greatly as one proceeds away from the stoichiometric mixture ratio. Then the variation of or / will be so great that, no matter how lai e the containing distance, the quenching condition will be achieved for the given mixture ratio. This mixture is the detonation limit. 

The step-like behavior of ps and S K)/N is consistent with a first-order phase transition, a result that has been confirmed in Refs. [47] and [48]. Notice that the superfiuid with Trf 1 is strongly interacting, and in particular the density-density correlation function is quenched at lengths R < a (see Figure 12.10c). This observation is consistent with the validity condition of the effective two-dimensional interaction potential given in Equation 12.6, indicating that two particles never approach each other to distances smaller than lj. ... 

Frequency-domain measurements of fluorescence energy transfer are used to determine the end-to-end distance distribution of donor-acceptor D-A) pairs linked by flexible alkyl chains. The length of the linker is varied from 11 to 2B atoms, and two different D-A pairs are used. In each case the D-A distributions are recovered from global analysis of measurements with different values for the FSrster distance, which are obtained by collislonal quenching of the donors. In all cases essentially the same distance distribution Is recovered from the frequency-domain data for each value of tha Ffirster distance. The experimentally recovered distance distributions are compared with those calculated from the RIS model. The experimentally recovered distance distributions for the largest chain molecules are In agreement with the predictions of the RIS model. However, the experimental and RIS distributions are distinct for the shorter D-A pairs. 

---