Investigation of a Coolant Mixing Phenomena within the Reactor Pressure Vessel of a VVER-1000 Reactor with Different Simulation Tools

<table>Predicted coolant temperature  in the sectors of  the downcomer  (levels: 2 to 22).</table>

Science and Technology of Nuclear Installations

Figure 15: Investigation of a Coolant Mixing Phenomena within the Reactor Pressure Vessel of a VVER-1000 Reactor with Different Simulation Tools 