Damkohler-Karlovitz Combustion Map

Visualize premixed flame regime from turbulent, chemical, and Kolmogorov time scales.

visual calculatorCombustion & Reacting Flow

Read the flow shape before trusting the number.

This page turns a CFD setup into regime, scale, and dominant-effect cues. Adjust the calculator below and compare the moving graphic with the computed result.

input scale

model

check

DamkohlerKarlovitzcombustionpremixed flame

formula

KaTeX rendered

\begin{aligned}\text{Da = tau\_t/tau\_c}\\[0.35em]\text{Ka = tau\_c/tau\_eta}\end{aligned}

ASCII source

Da = tau_t/tau_c, Ka = tau_c/tau_eta

u_prime (m/s)integral scale l (m)laminar S_L (m/s)flame thickness delta_L (m)nu (m2/s)

Damkohler Da

5.0000

Karlovitz Ka

8.6603

tau_t (s)

0.00750

tau_c (s)

0.00150

regime

thin reaction zones

This is a regime map for premixed turbulent reacting-flow setup. Detailed chemistry and differential diffusion still require solver-level modeling.

Damkohler Karlovitz combustion premixed flame