diff --git a/tutorials/sphereGranFlow/RotaryAirLockValve/ReadMe.md b/tutorials/sphereGranFlow/RotaryAirLockValve/ReadMe.md
index a5c13aa2..03fcd0d2 100644
--- a/tutorials/sphereGranFlow/RotaryAirLockValve/ReadMe.md
+++ b/tutorials/sphereGranFlow/RotaryAirLockValve/ReadMe.md
@@ -1,4 +1,4 @@
-# Problem Definition
+# Problem Definition (v-1.0)
 The problem is to simulate a Rotary Air-Lock Valve. The external diameter of rotor is about 21 cm. There is one type of particle in this simulation. Particles are inserted into the inlet of the valve from t=**0** s.
 * **28000** particles with **5 mm** diameter are inserted into the valve with the rate of **4000 particles/s**. 
 * The rotor starts its rotation at t = 1.25 s at the rate of 2.1 rad/s.