: Engine performance analysis, tailpipe emissions, and duct acoustics. Fuel Flexibility
: Select a model (e.g., the Vibe 2-Zone function) to predict heat release. avl boost tutorial upd
: See how well the engine breathes at high RPM. : Engine performance analysis, tailpipe emissions, and duct
| Symptom | Possible Cause | Fix | |---------|----------------|-----| | Simulation fails at 0° CA | Invalid lift curve (negative or zero maximum lift) | Check lift data; use 1 mm as min lift | | Pressure spikes at valve overlap | Incorrect valve timing | Ensure EVO > IVO on same cylinder | | No torque at low rpm | Combustion too late (SOC > 10° ATDC) | Advance Vibe start angle to -5° | | Convergence warning after 20 cycles | Wrong initial pressure/temperature | Initialize from previous converged cycle | | Symptom | Possible Cause | Fix |