Iran once again is in Political turmoil since 1979, People of Iran protesting for the where a bouts of their votes and they are now in the streets shouting and telling the world that they were being cheated.
What happened to Iran is not new to other countries experiencing this kind of scenario. There are many countries experienced country-wide protest that mostly led to many deaths and injuries to most people. But the question to which and when these protest would lead to?

We have seen many youtube videos and news clips from Iran, though the Iran Government is blocking these kind of websites, Iranians still make ways to tell the world about their situation. It is sad to see many civilians mauled, beaten or worst, killed. But what is nice to see, They still making ways to state their concerns peacefully. In many countries they fought with the government force and some of these protesters throw stones  to the Government personnel. Both scenarios are really not good in the eyes of the world. And these chaotic scenarios if not be solved It could lead to more disastrous situation, mostly it could affect the country's economy.

Can peaceful Revolution will succeed in Iran?

In my own points of View...Yes!
It happened in Philippines, people fought the Government forces with prayers and unity. People in the Philippines won their freedom without bloodshed. But if we look at the current form of Government the country of Iran has, it is unlikely that they would hand over their power to what the people wants. 

But is it possible to have a peaceful solution to the problem without any revolution?

Yes and that is up to the Government of Iran to think of a better solution that can be considered reasonable for the people. I think transparency of the election is what the people wants. And I guess the conflicting parties can go back to the negotiating table once this happen.

Peace is what the people wants in this world and I am agree that many are also wanted that to happen to the great country of Iran, and I know that's what Iranians wish to experience too, to have peaceful living.