The Guggenheim Abu Dhabi, one of three museums being built on the windswept Saadiyat Island in the capital of the United Arab Emirates, has been a quieter presence than the two other institutions there. The Louvre Abu Dhabi, designed by the French architect Jean Nouvel, which is scheduled to open next year, and the Zayed National Museum, created by the British architect Norman Foster and to be completed in two years, have each had exhibitions at Manarat Al Saadiyat, the island’s exhibition and visitor center, offering previews of their institutions. Now it is the Guggenheim’s turn.