A reader of Just Genesis has suggested that Noah's Ark landed on Ararat because that is apparently where Japhid (Japheth) dwelt. He explains that the area is mainly populated by Armenian and Assyrian Turks who are the "new kids on the block", but the land is called "Hyastan" after Haig or Haicus who Armenians represent as the son of Togarmah (Gen. 10). Hyastan means "Land of Hiacus". The Armenians, who constitute a small portion of the inhabitants of Armenia, call themselves Haiks, from this traditional ancestor.
I wouldn't be surprised that Japhid/Japheth has a connection to the Lake Van area. The descendants of Japheth are found in Europe, Turkey, Pakistan, Mongolia and the Upper Nile. This explains the linguistic similarity between some Afro-Asiatic names and some Turkish, Pashtun and Mongolian names, including Jochi, Beri, Malik and Khan. Khan was originally a title meaning king. Today it is a common surname in Turkey, Afghanistan, Pakistan, India and Mongolia. It is equivalent to the Afro-Asiatic Kain or Kayan. Some of the Pashtun tribes adopted Malik as the ruler's title instead of Khan. Malik is equivalent to the Afro-Asiatic Melek, meaning king or ruler.
Genghis Khan married a woman of the Olkut’Hun, or Ogur Hun meaning the Hun clan/community. The word ogur means clan/community and appears to be equivalent to the Pashto orkut, meaning community. So ogur, orkut and olkut are cognates and likely related to the Kandahar dialect, which has Tir-hari as a principal dialect. Tir is a form of the name Tiras, mentioned in Genesis 10 and hari is a form of the word for Horite. So Genghis Khan married into a community which had connections to Abraham's Horite people, probably through the ruler Nimrod.
In the Hungarian origin stories, Nimrod had two sons: Magor and Hunor. Magor is the equivalent of the Afro-Asiatic name Magog and the Hungarian word Magyar. Magyar is the name for the Hungarian people. Some Magyar still live in the Upper Nile area where they are called the Magyar-ab, the Magyar tribe.
Japheth appears to have been geographically separated from Noah's other 2 sons whose lines intermarried. There is no evidence of intermarriage between Japheth's lines and theirs, so his people did reside a good distance from them. However, all the Afro-Asiatic rulers were apparently related. And they were able to exchange goods, moving cargo along the major river systems that extended from west central Africa to the Indus River Valley and beyond. Their Afro-Asiatic Dominion has been reasonably well demonstrated and supported by comparative religion and linguistics.
The Afro-Arabian and Afro-Asiatic rulers controlled major water systems at a time when Africa, the Levant and Mesopotamia were much wetter. We know that the descendants of Japheth moved into the region of what is today Hungary. However, this hardly proves that Noah's ark landed in Armenia.
Genesis indicates that the biblical Noah lived in the area of Mega Chad. This is the only place on the surface of the earth that claims to be his homeland - Bor' No, meaning the land of Noah. During Noah's time Lake Chad was 600 feet deep and five times the size of Lake Superior.
Related reading: Finding Noah's Ark; Noah's Ark; Mount Mary and the Origins of Life; Dark Sky and Howling Wind; Noah's Sons and Their Descendants; Africa in the Days of Noah