Help! Real life fluid dynamics problem! Not kidding!

Springfield OR

Description

I thought I understood fluid dynamics enough to know how to use the concepts in real life. Apparently I was wrong. I have a 3 room apartment, (not counting the bathroom - but see below), 536 square feet. The bedroom, (154 sq ft) and kitchen (120 sq ft) are side by side (sort of). A VERY SMALL hallway (24 sq ft) connects the kitchen entrance, bedroom entrance and living room entrance, plus a bathroom entrance (full bathroom area is 41.25 sq ft). Final measurement: living room is 197 sq ft. Here's the issue: I run an 8,000 BTU window air conditioner in my bedroom, and am blessed with being able to run a 10,000 BTU window air conditioner in my kitchen, (both of these rooms have westward facing windows). I run a standard home oscillating fan in the hallway pointed at the living room, trying to send the A/C effect into the living room, (which has an eastward facing window). And it actually DOES work, to an extent. HOWEVER: once you cross the kitchen/hallway "border," or the bedroom/hallway border, you can feel a DRASTIC rise in temperature! And don't even THINK about how different the temperature is in the living room! How is this possible? More importantly: how can I change it? I'm already running a fan in the (tiny) hallway to move the conditioned air into the living room, so what else can I do? Any help, ideas, experiments are welcome. Thank you for your time.