Computational load imbalance due to direct integration of chemical kinetics is a well-known performance issue in parallel reacting flow simulations  .
<clarity> Computational load imbalance due to direct integration of chemical kinetics is a well-known performance issue in parallel reacting flow simulations  .
Computational load imbalance due to direct integration of chemical kinetics is a well-known performance issue in parallel reacting flow simulations utilizing directly integrated chemical kinetics .